Spectrogram - visual representation of sonic frequency
Fourier Transform - Mathematical method of extracting component frequencies from an original mic
Fundamental - base frequency of a tone
Harmonics - individual sine tones making up a sound
Formant - loudest harmonics that determine the character of a sound
Throat singing - a style of singing that produces more than one pitch
Khomus - Jaw harp from Sakha (northern Siberia)
Hermann von Helmholtz - German physicist who made crucial contributions to the field of acoustics
Rudolph Koenig - German physicist who built acoustic devices
Vocoder - The first electronic human voice emulator, developed by Homer Dudley in 1920
Basilar Membrane - An inner ear membrane that enables the perception of specific frequencies